Sharmanji Yarn Private Limited Kohara, Ludhiana, Punjab

Zinc selenide (ZnSe) is the most popular material for infrared applications, windows, lenses, and partial reflectors in the IR region. It has low absorption in the red end of the visible spectrum and quite stable in the laboratory environment.

HHV Vacuum Union seals any tubing or tabulations in the sizes. These Vacuum Unions are mounted either by brazing or welding and are manufactured in stainless steel.

Passivation is a process that removes “free iron” contamination left behind on the surface of the componentsparts as a result of machining and fabricating processes. These contaminants are potential corrosion sites which, if not removed, result in premature corrosion and ultimately result in deterioration of the components.

Application : In this process a chemical treatment accelerates the formation of an extremely thin, about 0.0000001 inch thick, oxide film on the surface of the clean part. This film prevents further corrosion of the surface.

This easy to use, high production rate vacuum metalizing system accomplishes effective deposition on substrates with complicated shapes and a wide range of sizes from a surface area of 50 x 50 to 200 x 900 mm and depths from 2 to 100mm. The twin door mechanism which helps to reduce the process cycle time. It has two independent gas inlet systems, one for Air Oxygen Nitrogen Argon to carry-out glow discharge cleaning process and other for the monomer to carry out plasma polymerization process for pre- coat and post - coat of the reflectors. The work holder has been designed to have a carrying capacity of 100 Kg. The “Harp” design of the evaporation bus bar provides better uniform aluminum coating and penetration on to the substrate.

HHV’s Vacuum Induction Melting (VIM) has a reliable process and very versatile.It can be used for producing a wide range of materials, including special alloys that are cast for high value critical parts such as golf club heads, aerospace parts, automotive parts, and other equipment components that need special mechanical properties for successful operations.

Impregnation becomes an integral part of electrical products manufacturing industries. It has been adopted as an important part of the work flow in modern electrical engineering industries. Its primary function is to protect the products from moisture, dust, contamination and chemically aggressive substances. The impregnating medium ensures that the heat that is generated in the conductor transferred to the environment and laminated the core more effectively.

Because of its diversity of needs, HHV has been designing and manufacturing variety of vacuum drying oven suits customer specific applications. These vacuum drying ovens are being used to achieve rapid drying at low temperature, including the drying of deep pores, in a way that does not damage the products. In these vacuum drying ovens, the dried material is exposed to a vacuum, thus reducing the boiling point and leading to water evaporation even at low temperatures.

HHV vacuum equipments are being used extensively by a number of auto electrical manufacturers. HHV products are approved for its quality and reliability by most companies producing auto components i.

HHV’s Vacuum Arc Re-melting furnace has two melt stations – one for consumable (in vacuum) and the other for non-consumable (in sub-atmosphere argon pressure) melting. The furnace is used to melt Niobium and Tantalum as well as to prepare alloys based on these refractory metals with an ultimate objective of producing alloy ingots of 60 – 150 mm diameter and upto 500mm length and alloy pancakes of 110mm diameter and 10mm thickness.

IR blocker coating is deposited on quartz windows and transmits the required UV energy from the light source while significantly suppressing the unwanted visible and infrared energy. It protects the heat sensitive materials from infrared radiation. Used in conjunction with our UV reflector coatings, this filter improves the efficiency of high power UV curing machines. It provides additional benefit by protecting the lamp and dichroic UV reflector in running the curing processes.

HHV produces world-class UV reflectors, which can be used in an optical system to dramatically speed up the UV curing process. UV reflectors give a high reflectance of UV energy while visible and infrared energy are suppressed. This enhances quality of finished products, improves durability, boosts productivity through substantial saving in energy, reduces drying times and labor and dissipates absolutely no environmental pollution.

Conventional heat- and air-drying works by solvent evaporation. This process shrinks the initial application of coatings by more than 50% and creates environmental pollutants.Using light instead of heat, the UV curing process is based on a photochemical reaction. Liquid monomers and oligomers are mixed with a small percent of photoinitiators, and then exposed to UV energy. In a few seconds, the products - inks, coatings or adhesives instantly harden.

The product is used in an EHL (Elasto Hydrodynamic Lubrication) Ultra Thin Film Measurement System which is a computer controlled instrument for measuring the film thickness and friction (traction) coefficient of lubricants in the elastohydrodynamic lubricating regime. This instrument can measure film thickness down to 1 nm with a precision of ± 1 nm. The present invention of “tribological coating for measuring film thickness of lubricants” is very unique.

Transparent heaters are widely used in display devices such as Camera, LCD's, Flat panel display & electro-optical devices,. Response rate of the display device is critical and it mostly depends on the environmental temperature. Critical environment situations require fast acting display while operating temperature in - 40 deg C. or colder otherwise may cause the LCD to react very slowly or slow meaningless characters.

Aircraft Windshields; Photovoltaic cells; Commerical windows; Liquid crystal display glass; OLED, Shipboard; Periscope; Vehicle displays,; Mobile, and Computers.

Decorative coting and wear resistant coating using physical vapour depositin is becoming the order of the day. This PVD deposition is now replacing chemical electro plating for both wear resistant and decorative applications. Chemical Electro plating has serious environmental consequences and in today's world it os PVD tool for decorative coatingsbecoming an univiable option. In addition, decorative coating using PVD achieves the same luster, brightness and can be done at substantially lower cost in addition to it being for more durable.

Thin film circuit metallization schemes at HHV are deposited by magnetron sputtering method and the deposited metal layers show excellent adhesion compared to other non vacuum deposition methods.These metallization schemes start with abonding layer of TiW or Cr and a conductive layer of Au Cu on the ceramic substrates.

HHV provides high performance sputtering targets in a wide range of materials, sizes and forms. This includes precious metals and non-precious metals, engineered specialty alloys, ceramics...

HHV’s one of its recent advanced special purpose vacuum furnace is a Solution cum ageing vacuum heat treatment furnace intended to be used for stress relieving of Nickel - based alloy parts and for processing aluminum components. The furnace is designed for solution heat treatment, solution annealing, precipitation hardening, artificial hardening, age hardening, artificial ageing and preheating.

HHV has made the dreams of researchers working in academic and industrial thin film laboratories come true by introducing a versatile, modular thin film deposition system SMART COAT 3.0. It is compatible with Glass bell jar & cylindrical glass chamber & box type metal chamber. This unique modular design helps the researchers to develop a wide range of thin film process and products with evaporation; ion assisted sputtering or electron beam techniques.

The system has been design to deposit rare materials like Platinum (Pt), Palladium (Pd), Rhodium (Rh), Gold (Au) and Silver (Ag) to produce highly efficient, uniform thin films for even the most complex applications. Comprehensive SCADA-based vacuum and process control automation provides repeatable run-to-run operation. Process recipe selection is provided and the system can send out SMS messages in the event of needing attention. A cryo-based pumping system enables an ultimate vacuum of < 5x 10-7 mbar in the chamber.

HHV designed and developed a large size coater with a magnetron fitted on a robotic arm for deposition of uniform, conductive and transparent coatings on substrates with complex geometry like the canopy windshield of an aircraft which is made out of polymers. The Robot with suitable Electro-mechanical hardware is suitable to work stand vacuum as well Argon environment.

HHV offers pneumatically operated Right Angle Valve of 25mm and 50 mm in Aluminium and other models Stainless Steel. These Right Angle Valves are fitted with neoprene "O" rings as standard and optionally viton "O" rings are offered. These valves are used as "in-line" chamber isolation valve. Right Angle Valves are leak tight to the sensitivity of 10-9 m.bar litsec.

The HHV ION-ETCH 150 Reactive Ion Etching system is a compact system for use in nanofabrication technology applications. The capacitively-coupled plasma reactor is configured for the etching of silicon based materials, compound semiconductors, dielectrics, sputtered metal films, polymer and other materials. The 300 mm chamber can take substrates up to 6” diameter and incorporates a gas shower head for uniform process gas distribution. The system is computer controlled and has a turbo pumping system to provide base vacuum. An optional wet-type dynamic oxidation abatement system facilitates neutralisation of the process gases.